Problem 14.15- Sixth Edition

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Kate_Santoso_4F
Posts: 72
Joined: Fri Sep 28, 2018 12:29 am

Problem 14.15- Sixth Edition

Postby Kate_Santoso_4F » Tue Feb 26, 2019 10:19 am

Write the half-reactions, the balanced equation for the cell reaction, and the cell diagram for each of the following skeletal equations:
Part c) Cd(s) + 2Ni(OH)3 (s) --> Cd(OH)2 (s) + 2Ni(OH)2 (s)
The cell diagram in the answer key is the following:
Cd (s) | Cd(OH)2 (s) | KOH (aq) || Ni(OH)3 (s) | Ni(OH)2 (s) | Ni (s)
Why is KOH used in the diagram above instead of OH- (aq)?

Jesse Kuehn 1B
Posts: 40
Joined: Wed Nov 14, 2018 12:23 am

Re: Problem 14.15- Sixth Edition

Postby Jesse Kuehn 1B » Tue Feb 26, 2019 10:31 am

this is just because OH is not present alone in solution, it need another ion to "attach" to which comes in the form of K+ but it doesn't really affect anything as they are basically dissociate, just makes the problem look a lot more confusing


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